In this paper, we investigate the boundedness of commutators generated by b BMO and fractional integrals I_ from M䃑^p, wᵖ to M䃒^q, wq for 1<p<q<. We obtain some new conditions for the pair (₁, ₂) of the functions ₁ and ₂ on Rⁿ (0, ) that ensure the boundedness properties.
Yusuf Ramadana (Tue,) studied this question.